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authorJeff Dike <jdike@addtoit.com>2007-05-06 14:51:33 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-07 12:13:03 -0700
commitef0470c053274c343b2be8737e0146d65e17f9be (patch)
tree68809a8af1da35e3bb3530a667eea080e086fae0 /arch/um/os-Linux/process.c
parent3d564047a5f45cb628ec72514f68076e532988f3 (diff)
downloadop-kernel-dev-ef0470c053274c343b2be8737e0146d65e17f9be.zip
op-kernel-dev-ef0470c053274c343b2be8737e0146d65e17f9be.tar.gz
uml: tidy libc code
This patch lays some groundwork for the next one, which converts calls to os_{read,write}_file into {read,write}, by doing some tidying in the affected areas. do_not_aio gets restructured to make the final result a bit cleaner. There are also whitespace and other formatting fixes, fixes in error messages, and a typo fix. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/um/os-Linux/process.c')
-rw-r--r--arch/um/os-Linux/process.c29
1 files changed, 15 insertions, 14 deletions
diff --git a/arch/um/os-Linux/process.c b/arch/um/os-Linux/process.c
index 37933d3..a84a458 100644
--- a/arch/um/os-Linux/process.c
+++ b/arch/um/os-Linux/process.c
@@ -40,14 +40,14 @@ unsigned long os_process_pc(int pid)
if(fd < 0){
printk("os_process_pc - couldn't open '%s', err = %d\n",
proc_stat, -fd);
- return(ARBITRARY_ADDR);
+ return ARBITRARY_ADDR;
}
err = os_read_file(fd, buf, sizeof(buf));
if(err < 0){
printk("os_process_pc - couldn't read '%s', err = %d\n",
proc_stat, -err);
os_close_file(fd);
- return(ARBITRARY_ADDR);
+ return ARBITRARY_ADDR;
}
os_close_file(fd);
pc = ARBITRARY_ADDR;
@@ -56,7 +56,7 @@ unsigned long os_process_pc(int pid)
"%*d %*d %*d %*d %*d %lu", &pc) != 1){
printk("os_process_pc - couldn't find pc in '%s'\n", buf);
}
- return(pc);
+ return pc;
}
int os_process_parent(int pid)
@@ -65,13 +65,14 @@ int os_process_parent(int pid)
char data[256];
int parent, n, fd;
- if(pid == -1) return(-1);
+ if(pid == -1)
+ return -1;
snprintf(stat, sizeof(stat), "/proc/%d/stat", pid);
fd = os_open_file(stat, of_read(OPENFLAGS()), 0);
if(fd < 0){
printk("Couldn't open '%s', err = %d\n", stat, -fd);
- return(FAILURE_PID);
+ return FAILURE_PID;
}
n = os_read_file(fd, data, sizeof(data));
@@ -79,7 +80,7 @@ int os_process_parent(int pid)
if(n < 0){
printk("Couldn't read '%s', err = %d\n", stat, -n);
- return(FAILURE_PID);
+ return FAILURE_PID;
}
parent = FAILURE_PID;
@@ -87,7 +88,7 @@ int os_process_parent(int pid)
if(n != 1)
printk("Failed to scan '%s'\n", data);
- return(parent);
+ return parent;
}
void os_stop_process(int pid)
@@ -145,7 +146,7 @@ void os_usr1_process(int pid)
int os_getpid(void)
{
- return(syscall(__NR_getpid));
+ return syscall(__NR_getpid);
}
int os_getpgrp(void)
@@ -165,8 +166,8 @@ int os_map_memory(void *virt, int fd, unsigned long long off, unsigned long len,
loc = mmap64((void *) virt, len, prot, MAP_SHARED | MAP_FIXED,
fd, off);
if(loc == MAP_FAILED)
- return(-errno);
- return(0);
+ return -errno;
+ return 0;
}
int os_protect_memory(void *addr, unsigned long len, int r, int w, int x)
@@ -175,8 +176,8 @@ int os_protect_memory(void *addr, unsigned long len, int r, int w, int x)
(x ? PROT_EXEC : 0));
if(mprotect(addr, len, prot) < 0)
- return(-errno);
- return(0);
+ return -errno;
+ return 0;
}
int os_unmap_memory(void *addr, int len)
@@ -185,8 +186,8 @@ int os_unmap_memory(void *addr, int len)
err = munmap(addr, len);
if(err < 0)
- return(-errno);
- return(0);
+ return -errno;
+ return 0;
}
#ifndef MADV_REMOVE
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